// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "base/message_loop/message_loop.h"
#include "content/browser/appcache/appcache.h"
#include "content/browser/appcache/appcache_group.h"
#include "content/browser/appcache/appcache_response.h"
#include "content/browser/appcache/appcache_storage.h"
#include "content/browser/appcache/mock_appcache_service.h"
#include "content/browser/quota/mock_quota_manager_proxy.h"
#include "testing/gtest/include/gtest/gtest.h"

namespace content {

namespace {
    const storage::StorageType kTemp = storage::kStorageTypeTemporary;
}

class AppCacheStorageTest : public testing::Test {
public:
    class MockStorageDelegate : public AppCacheStorage::Delegate {
    public:
    };
};

TEST_F(AppCacheStorageTest, AddRemoveCache)
{
    MockAppCacheService service;
    scoped_refptr<AppCache> cache(new AppCache(service.storage(), 111));

    EXPECT_EQ(cache.get(),
        service.storage()->working_set()->GetCache(111));

    service.storage()->working_set()->RemoveCache(cache.get());

    EXPECT_TRUE(!service.storage()->working_set()->GetCache(111));

    // Removing non-existing cache from service should not fail.
    MockAppCacheService dummy;
    dummy.storage()->working_set()->RemoveCache(cache.get());
}

TEST_F(AppCacheStorageTest, AddRemoveGroup)
{
    MockAppCacheService service;
    scoped_refptr<AppCacheGroup> group(
        new AppCacheGroup(service.storage(), GURL(), 111));

    EXPECT_EQ(group.get(), service.storage()->working_set()->GetGroup(GURL()));

    service.storage()->working_set()->RemoveGroup(group.get());

    EXPECT_TRUE(!service.storage()->working_set()->GetGroup(GURL()));

    // Removing non-existing group from service should not fail.
    MockAppCacheService dummy;
    dummy.storage()->working_set()->RemoveGroup(group.get());
}

TEST_F(AppCacheStorageTest, AddRemoveResponseInfo)
{
    MockAppCacheService service;
    scoped_refptr<AppCacheResponseInfo> info(
        new AppCacheResponseInfo(service.storage(), GURL(),
            111, new net::HttpResponseInfo,
            kUnkownResponseDataSize));

    EXPECT_EQ(info.get(),
        service.storage()->working_set()->GetResponseInfo(111));

    service.storage()->working_set()->RemoveResponseInfo(info.get());

    EXPECT_TRUE(!service.storage()->working_set()->GetResponseInfo(111));

    // Removing non-existing info from service should not fail.
    MockAppCacheService dummy;
    dummy.storage()->working_set()->RemoveResponseInfo(info.get());
}

TEST_F(AppCacheStorageTest, DelegateReferences)
{
    typedef scoped_refptr<AppCacheStorage::DelegateReference>
        ScopedDelegateReference;
    MockAppCacheService service;
    MockStorageDelegate delegate;
    ScopedDelegateReference delegate_reference1;
    ScopedDelegateReference delegate_reference2;

    EXPECT_FALSE(service.storage()->GetDelegateReference(&delegate));

    delegate_reference1 = service.storage()->GetOrCreateDelegateReference(&delegate);
    EXPECT_TRUE(delegate_reference1.get());
    EXPECT_TRUE(delegate_reference1->HasOneRef());
    EXPECT_TRUE(service.storage()->GetDelegateReference(&delegate));
    EXPECT_EQ(&delegate,
        service.storage()->GetDelegateReference(&delegate)->delegate);
    EXPECT_EQ(service.storage()->GetDelegateReference(&delegate),
        service.storage()->GetOrCreateDelegateReference(&delegate));
    delegate_reference1 = NULL;
    EXPECT_FALSE(service.storage()->GetDelegateReference(&delegate));

    delegate_reference1 = service.storage()->GetOrCreateDelegateReference(&delegate);
    service.storage()->CancelDelegateCallbacks(&delegate);
    EXPECT_TRUE(delegate_reference1.get());
    EXPECT_TRUE(delegate_reference1->HasOneRef());
    EXPECT_FALSE(delegate_reference1->delegate);
    EXPECT_FALSE(service.storage()->GetDelegateReference(&delegate));

    delegate_reference2 = service.storage()->GetOrCreateDelegateReference(&delegate);
    EXPECT_TRUE(delegate_reference2.get());
    EXPECT_TRUE(delegate_reference2->HasOneRef());
    EXPECT_EQ(&delegate, delegate_reference2->delegate);
    EXPECT_NE(delegate_reference1.get(), delegate_reference2.get());
}

TEST_F(AppCacheStorageTest, UsageMap)
{
    const GURL kOrigin("http://origin/");
    const GURL kOrigin2("http://origin2/");

    MockAppCacheService service;
    scoped_refptr<MockQuotaManagerProxy> mock_proxy(
        new MockQuotaManagerProxy(NULL, NULL));
    service.set_quota_manager_proxy(mock_proxy.get());

    service.storage()->UpdateUsageMapAndNotify(kOrigin, 0);
    EXPECT_EQ(0, mock_proxy->notify_storage_modified_count());

    service.storage()->UpdateUsageMapAndNotify(kOrigin, 10);
    EXPECT_EQ(1, mock_proxy->notify_storage_modified_count());
    EXPECT_EQ(10, mock_proxy->last_notified_delta());
    EXPECT_EQ(kOrigin, mock_proxy->last_notified_origin());
    EXPECT_EQ(kTemp, mock_proxy->last_notified_type());

    service.storage()->UpdateUsageMapAndNotify(kOrigin, 100);
    EXPECT_EQ(2, mock_proxy->notify_storage_modified_count());
    EXPECT_EQ(90, mock_proxy->last_notified_delta());
    EXPECT_EQ(kOrigin, mock_proxy->last_notified_origin());
    EXPECT_EQ(kTemp, mock_proxy->last_notified_type());

    service.storage()->UpdateUsageMapAndNotify(kOrigin, 0);
    EXPECT_EQ(3, mock_proxy->notify_storage_modified_count());
    EXPECT_EQ(-100, mock_proxy->last_notified_delta());
    EXPECT_EQ(kOrigin, mock_proxy->last_notified_origin());
    EXPECT_EQ(kTemp, mock_proxy->last_notified_type());

    service.storage()->NotifyStorageAccessed(kOrigin2);
    EXPECT_EQ(0, mock_proxy->notify_storage_accessed_count());

    service.storage()->usage_map_[kOrigin2] = 1;
    service.storage()->NotifyStorageAccessed(kOrigin2);
    EXPECT_EQ(1, mock_proxy->notify_storage_accessed_count());
    EXPECT_EQ(kOrigin2, mock_proxy->last_notified_origin());
    EXPECT_EQ(kTemp, mock_proxy->last_notified_type());

    service.storage()->usage_map_.clear();
    service.storage()->usage_map_[kOrigin] = 5000;
    service.storage()->ClearUsageMapAndNotify();
    EXPECT_EQ(4, mock_proxy->notify_storage_modified_count());
    EXPECT_EQ(-5000, mock_proxy->last_notified_delta());
    EXPECT_EQ(kOrigin, mock_proxy->last_notified_origin());
    EXPECT_EQ(kTemp, mock_proxy->last_notified_type());
    EXPECT_TRUE(service.storage()->usage_map_.empty());
}

} // namespace content
